SF013,SF018 Gear pump bearing
It is developed according to the high PV value of hydraulic pump.It can offer the low friction coefficient and good anti-abrasion,be used in semi-dry condition.This product is applied to medium,high pressure gear pump,ram pump,vane pumps,etc.
Note:SF018 without lead
Availability:
Cylindrical bushes,flanged bushes,thrust wahsers,strip and non-standard parts as the clients supplied drawing and etc.
Tolerance:
Recommended housing bore tolerance is H7,while the shaft diameter tolerance is F7 or H8.
Tech Data:
| Max load capacity P(Dynamic) 140N/mm2,Maximum PV value (Dry) 3.6N/mm2.m/s |
| Max load capacity P(Static)250N/mm2 Maximum PV value(Oil)60N/mm2.m/s |
| Max line speed V(Dry) 2m/s Working temperature -200C~+280C |
Max line speed V(Oil) 5m/s Thermal conductivity 40W/(m.k)
Friction coef 0.08~0.20 Coefficient of linear expansion 12*10*6/k |
SF-2 Boundary Lubrication Bronze Bushing in Yellow POM Tin-plating Sliding Bearing Bush
(1) material structure is Steel base + Bronze powder + POM (yellow).
(2) good load capacity and wear-resistant.
(3) applied to the vehicle chassis, forming machine tools, steel metallurgical machinery, mineral mountain machinery, hydraulic industry and rolling steel industry, etc. Because of without lead, this product is according with environmental requirement.
| Performance Index |
Data |
| Product Name |
SF-2 Boundary Lubrication Bronze Bushing in Yellow POM Tin-plating Sliding Bearing Bush |
| Max load capacity P |
Static Load |
140N/mm² |
| Dynamic Load |
70N/mm² |
| Max line speed V |
Grease Lubrication |
2.5m/s |
| PV value limit |
2.8N/mm²·m/s |
| Friction coef u |
0.06~0.12 |
| Mating Axis |
Hardness |
>270 HB |
| Roughness |
Ra=0.4~1.25 |
| Material |
Steel+Bronze+POM |
| Typical application |
It's used in vehicle chassis, forming machine tools, steel metallurgical machinery, mineral mountain machinery, hydraulic industry and rolling steel industry, etc. |
| Working Temperature |
-40~+120ºC |
| Thermal conductivity |
52W/(m·k) |
| Coefficient of linear expansion |
11×10-6/K |
| Outside surface Plating |
copper/tin |
| Notice: We can also develop according to customers special request while out of this table. |
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